Type: Curse
Pronunciation: MIM-bull-wim-bull
Description: Ties the target's tongue in a knot, preventing them from making coherent speech, or saying incantations correctly, making it useful in duels.
Seen/Mentioned: Seen in 1997 as a deterrent to Severus Snape, or any other unwanted visitor of 12 Grimmauld Place, from betraying their location to anyone else.
